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  Tissue-specific profiling of membrane proteins in the salicin sequestering juveniles of the herbivorous leaf beetle, Chrysomela populi

Schmidt, L., Wielsch, N., Wang, D., Boland, W., & Burse, A. (2019). Tissue-specific profiling of membrane proteins in the salicin sequestering juveniles of the herbivorous leaf beetle, Chrysomela populi. Insect Biochemistry and Molecular Biology, 109, 81-91. doi:10.1016/j.ibmb.2019.03.009.

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Schmidt, Lydia1, Author              
Wielsch, Natalie2, Author              
Wang, Ding1, 3, Author              
Boland, Wilhelm1, Author              
Burse, Antje4, Author              
Affiliations:
1Department of Bioorganic Chemistry, Prof. Dr. W. Boland, MPI for Chemical Ecology, Max Planck Society, ou_24028              
2Research Group Mass Spectrometry, MPI for Chemical Ecology, Max Planck Society, ou_421899              
3IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              
4Research Group Dr. A. Burse, Chemical Defense of Leaf Beetles, Department of Bioorganic Chemistry, Prof. Dr. W. Boland, MPI for Chemical Ecology, Max Planck Society, ou_543545              

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 Abstract: Sequestration of plant secondary metabolites is a detoxification strategy widespread in herbivorous insects including not only storage, but also usage of these metabolites for the insects' own benefit. Larvae of the poplar leaf beetle Chrysomela populi sequester plant-derived salicin to produce the deterrent salicylaldehyde in specialized exocrine glands. To identify putative transporters involved in the sequestration process we investigated integral membrane proteins of several tissues from juvenile C. populi by using a proteomics approach. Computational analyses led to the identification of 122 transport proteins in the gut, 105 in the Malpighian tubules, 94 in the fat body and 27 in the defensive glands. Among these, primary active transporters as well as electrochemical potential- driven transporters were most abundant in all tissues, including ABC transporters (especially subfamilies B, C and G) and sugar porters as most interesting families facilitating the sequestration of plant glycosides. Whereas ABC transporters are predominantly expressed simultaneously in several tissues, sugar porters are often expressed in only one tissue, suggesting that sugar porters govern more distinct functions than members of the ABC family. The inventory of transporters presented in this study provides the base for further functional characterizations on transport processes of sequestered glycosides in insects.

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 Dates: 2019-06
 Publication Status: Published in print
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 Identifiers: Other: BOL715
DOI: 10.1016/j.ibmb.2019.03.009
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Title: Insect Biochemistry and Molecular Biology
  Other : Insect Biochem. Mol. Biol.
Source Genre: Journal
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Publ. Info: Oxford [England] : Pergamon
Pages: - Volume / Issue: 109 Sequence Number: - Start / End Page: 81 - 91 Identifier: ISSN: 0965-1748
CoNE: https://pure.mpg.de/cone/journals/resource/954925581163